‘Visual evidence’ shows both aircraft in DC collision were ‘sharing an altitude’: Former pilot

Retired Black Hawk helicopter pilot Lt. Col. Darin Gaub gives his take on the investigations into the Washington, D.C. and Philadelphia aircraft disasters on ‘Fox News Live.’ Retired Black Hawk helicopter pilot Lt. Col. Darin Gaub gives his take on the investigations into the Washington, D.C. and Philadelphia aircraft disasters on ‘Fox News Live.’